摘要:
A method and an apparatus for deciding a spherical aberration compensation (SAC) value for an optical storage medium are provided. The optical storage medium comprises at least one recording layer and a cover layer. The SAC value is suitable for a selected one of the at least one recording layer. First, a focus search on the optical storage medium is performed to derive a focus error (FE) signal in response to a testing SAC value. Then, a center level and a center basis corresponding to the testing SAC value according to the FE signal is determined. The SAC value according to the center level, the center basis, and the testing SAC value is also determined. When the center level and the center basis are equal, the SAC value is determined to be the testing SAC value.
摘要:
A method and an apparatus for deciding a spherical aberration compensation (SAC) value for an optical storage medium are provided. The optical storage medium comprises at least one recording layer and a cover layer. The SAC value is suitable for a selected one of the at least one recording layer. First, a focus search on the optical storage medium is performed to derive a focus error (FE) signal in response to a testing SAC value. Then, a center level and a center basis corresponding to the testing SAC value according to the FE signal is determined. The SAC value according to the center level, the center basis, and the testing SAC value is also determined. When the center level and the center basis are equal, the SAC value is determined to be the testing SAC value.
摘要:
Optical disc apparatuses. The apparatus comprises an optical pickup and a data recovery unit. The optical pickup irradiates laser light onto a disc, receives light reflected from the disc, and generates an RF signal in response to the received light. The data recovery unit comprises a first configuration and a second configuration. The data recovery unit receives the RF signal from the optical pickup, reproduces data according to the RF signal in the first configuration, and performs a signal quality index measurement of the RF signal in the second configuration.
摘要:
A detector is scanned across an optical storage medium having groove tracks and land tracks, each track having a wobble structure, to detect light reflected from the optical storage medium. A wobble signal and a tracking error signal are generated based on an output of the detector, and the wobble signal is sampled according to the tracking error signal. A determination about whether the detector is at the groove track or the land track is made based on the tracking error signal and a comparison of sampled values of the wobble signal.
摘要:
A detector is scanned across an optical storage medium having groove tracks and land tracks, each track having a wobble structure, to detect light reflected from the optical storage medium. A wobble signal and a tracking error signal are generated based on an output of the detector, and the wobble signal is sampled according to the tracking error signal. A determination about whether the detector is at the groove track or the land track is made based on the tracking error signal and a comparison of sampled values of the wobble signal.
摘要:
A detector is scanned across an optical storage medium having groove tracks and land tracks, each track having a wobble structure, to detect light reflected from the optical storage medium. A wobble signal and a tracking error signal are generated based on an output of the detector, and the wobble signal is sampled according to the tracking error signal. A determination about whether the detector is at the groove track or the land track is made based on the tracking error signal and a comparison of sampled values of the wobble signal.
摘要:
A detector is scanned across an optical storage medium having groove tracks and land tracks, each track having a wobble structure, to detect light reflected from the optical storage medium. A wobble signal and a tracking error signal are generated based on an output of the detector, and the wobble signal is sampled according to the tracking error signal. A determination about whether the detector is at the groove track or the land track is made based on the tracking error signal and a comparison of sampled values of the wobble signal.
摘要:
A rekeyable lock cylinder comprises a cylinder body, a plug assembly disposed within the cylinder body and an operation error preventing unit. The cylinder body has a plurality of upper pin holes and an accommodating hole. The plug assembly comprises a plug body, a plurality of assembled rack components and a position block disposed within the plug body. The plug body has an outside wall, a keyhole, a plurality of lower pin holes and a first hole in communication with the outside wall and the keyhole. The assembled rack components are disposed at each of the lower pin holes of the plug body respectively. The operation error preventing unit comprises a first movable member disposed at the accommodating hole of the cylinder body and a second movable member disposed at the first hole of the plug body, and the first movable member may contact against the second movable member.
摘要:
A lock cylinder assembly comprises a cylinder body, a plug, a plurality of pin sets and a position block, wherein the plug comprising a keyhole is rotatable within the cylinder body between a locked position and an unlocked position, the pin sets enable the plug disposed relative to the cylinder body to change state between a non-interference state and an interference state, the position block enables the plug disposed relative to the cylinder body to change state between the non-interference state and the interference state, and at least one of the pin sets and the position block is situated in the interference state to disable the lock cylinder from the locked position without a matched key in the keyhole.
摘要:
A method of recording data onto an optical storage medium includes: before starting recording data onto the optical storage medium from an expected link point on the optical storage medium, setting a current recording condition corresponding to the expected link point according to at least one previous recording condition corresponding to the expected link point; and controlling an operation of recording the data onto the optical storage medium according to the current recording condition.